WO2011084789A3 - Integrated processes for the preparation of polybenzimidazole precursors - Google Patents

Integrated processes for the preparation of polybenzimidazole precursors Download PDF

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Publication number
WO2011084789A3
WO2011084789A3 PCT/US2010/061536 US2010061536W WO2011084789A3 WO 2011084789 A3 WO2011084789 A3 WO 2011084789A3 US 2010061536 W US2010061536 W US 2010061536W WO 2011084789 A3 WO2011084789 A3 WO 2011084789A3
Authority
WO
WIPO (PCT)
Prior art keywords
triaminophenol
preparation
precursors
integrated processes
polybenzimidazole
Prior art date
Application number
PCT/US2010/061536
Other languages
French (fr)
Other versions
WO2011084789A2 (en
Inventor
Rajiv Dhawan
Joachim C. Ritter
Original Assignee
E. I. Du Pont De Nemours And Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E. I. Du Pont De Nemours And Company filed Critical E. I. Du Pont De Nemours And Company
Priority to US13/517,283 priority Critical patent/US20130046109A1/en
Publication of WO2011084789A2 publication Critical patent/WO2011084789A2/en
Publication of WO2011084789A3 publication Critical patent/WO2011084789A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C213/00—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton
    • C07C213/08—Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same carbon skeleton by reactions not involving the formation of amino groups, hydroxy groups or etherified or esterified hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

An integrated process is provided for efficiently preparing 2,4,5-triaminophenol, starting with nitration of 2,6-dihalobenzene; high purity salts thereof; and complexes of 2,4,5-triaminophenol aromatic diacids, which are precursors for making polybenzimidazole polymer for high performance fibers. The process design eliminates several costly intermediate drying and recrystallization steps. The handling of solid materials with possible skin sensitizing properties and toxicity is avoided, thereby eliminating human and environmental exposure.
PCT/US2010/061536 2009-12-21 2010-12-21 Integrated processes for the preparation of polybenzimidazole precursors WO2011084789A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/517,283 US20130046109A1 (en) 2009-12-21 2010-12-21 Integrated processes for the preparation of polybenzimidazole precursors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28848909P 2009-12-21 2009-12-21
US61/288,489 2009-12-21

Publications (2)

Publication Number Publication Date
WO2011084789A2 WO2011084789A2 (en) 2011-07-14
WO2011084789A3 true WO2011084789A3 (en) 2011-11-10

Family

ID=44306095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/061536 WO2011084789A2 (en) 2009-12-21 2010-12-21 Integrated processes for the preparation of polybenzimidazole precursors

Country Status (2)

Country Link
US (1) US20130046109A1 (en)
WO (1) WO2011084789A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8580910B2 (en) * 2009-12-21 2013-11-12 E I Du Pont De Nemours And Company 2,4,5-triaminophenols and related compounds
US20130204041A1 (en) * 2009-12-21 2013-08-08 E I Du Pont De Nemours And Compan 2,4,5-triaminophenols and related compounds
US8664348B2 (en) * 2009-12-21 2014-03-04 E I Du Pont De Nemours And Company 2,4,5-triaminophenols and related compounds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5990354A (en) * 1997-11-17 1999-11-23 Gradient Technology Conversion of ammonium picrate to m-phenylenediamine, aniline, and primary amines
US20060033226A1 (en) * 2004-08-16 2006-02-16 Jing Wang Processes for producing monolithic porous carbon disks from aromatic organic precursors
JP2008038141A (en) * 2006-07-12 2008-02-21 Toray Ind Inc Heat-resistant resin composition and metal-resin composite material produced by using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130012681A1 (en) * 2009-12-21 2013-01-10 E.I. Du Pont De Nemours And Company 2,4,5-triaminophenols and related compounds
US8580910B2 (en) * 2009-12-21 2013-11-12 E I Du Pont De Nemours And Company 2,4,5-triaminophenols and related compounds

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5990354A (en) * 1997-11-17 1999-11-23 Gradient Technology Conversion of ammonium picrate to m-phenylenediamine, aniline, and primary amines
US20060033226A1 (en) * 2004-08-16 2006-02-16 Jing Wang Processes for producing monolithic porous carbon disks from aromatic organic precursors
JP2008038141A (en) * 2006-07-12 2008-02-21 Toray Ind Inc Heat-resistant resin composition and metal-resin composite material produced by using the same

Also Published As

Publication number Publication date
US20130046109A1 (en) 2013-02-21
WO2011084789A2 (en) 2011-07-14

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